5DC4

CRYSTAL STRUCTURE OF MONOBODY AS25/ABL1 SH2 DOMAIN COMPLEX, CRYSTAL A


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.48 Å
  • R-Value Free: 0.190 
  • R-Value Work: 0.144 
  • R-Value Observed: 0.147 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Allosteric Inhibition of Bcr-Abl Kinase by High Affinity Monobody Inhibitors Directed to the Src Homology 2 (SH2)-Kinase Interface.

Wojcik, J.Lamontanara, A.J.Grabe, G.Koide, A.Akin, L.Gerig, B.Hantschel, O.Koide, S.

(2016) J Biol Chem 291: 8836-8847

  • DOI: https://doi.org/10.1074/jbc.M115.707901
  • Primary Citation of Related Structures:  
    5DC0, 5DC4, 5DC9

  • PubMed Abstract: 

    Bcr-Abl is a constitutively active kinase that causes chronic myelogenous leukemia. We have shown that a tandem fusion of two designed binding proteins, termed monobodies, directed to the interaction interface between the Src homology 2 (SH2) and kinase domains and to the phosphotyrosine-binding site of the SH2 domain, respectively, inhibits the Bcr-Abl kinase activity. Because the latter monobody inhibits processive phosphorylation by Bcr-Abl and the SH2-kinase interface is occluded in the active kinase, it remained undetermined whether targeting the SH2-kinase interface alone was sufficient for Bcr-Abl inhibition. To address this question, we generated new, higher affinity monobodies with single nanomolar KD values targeting the kinase-binding surface of SH2. Structural and mutagenesis studies revealed the molecular underpinnings of the monobody-SH2 interactions. Importantly, the new monobodies inhibited Bcr-Abl kinase activity in vitro and in cells, and they potently induced cell death in chronic myelogenous leukemia cell lines. This work provides strong evidence for the SH2-kinase interface as a pharmacologically tractable site for allosteric inhibition of Bcr-Abl.


  • Organizational Affiliation

    From the Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, Illinois 60637, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Gdansk, Poland.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Tyrosine-protein kinase ABL1123Homo sapiensMutation(s): 0 
Gene Names: ABL1ABLJTK7
EC: 2.7.10.2
UniProt & NIH Common Fund Data Resources
Find proteins for P00519 (Homo sapiens)
Explore P00519 
Go to UniProtKB:  P00519
GTEx:  ENSG00000097007 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP00519
Sequence Annotations
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
AS25 monobody95Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P02751 (Homo sapiens)
Explore P02751 
Go to UniProtKB:  P02751
GTEx:  ENSG00000115414 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP02751
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download Ideal Coordinates CCD File 
C [auth A]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.48 Å
  • R-Value Free: 0.190 
  • R-Value Work: 0.144 
  • R-Value Observed: 0.147 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 61.281α = 90
b = 74.928β = 90
c = 39.229γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing
REFMACrefinement

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesR01-GM090324
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesT32GM07281
National Institutes of Health/National Cancer Institute (NIH/NCI)United StatesP30CA014599

Revision History  (Full details and data files)

  • Version 1.0: 2016-03-02
    Type: Initial release
  • Version 1.1: 2016-03-09
    Changes: Data collection
  • Version 1.2: 2016-05-11
    Changes: Database references
  • Version 1.3: 2017-09-20
    Changes: Author supporting evidence, Database references, Derived calculations
  • Version 1.4: 2019-12-04
    Changes: Author supporting evidence